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1 four port bypass for fc-al S2071 january 6, 2000 / revision c ? features ? micropower bipolar technology ? ansi x3t11 fibre channel compatible ? four port bypass circuits ? suitable for both coaxial and optical link ? nominal deterministic jitter 10ps ? low power operation 0.73 w typical ? 44 pin pqfp package ? 3.3v supply applications ? raid ? jbod ? fc-al nodes figure 1. S2071 functional block diagram device specification four port bypass for fc-al S2071 general description the four port bypass for fc-al circuit is used in full-speed (1.0625 gbps) disk arrays. it contains four port bypass circuits. the S2071 may be used to implement a single chip arbitrated loop port bypass node. the S2071 performs the function of four port bypass circuits. functional description the S2071 functional block diagram is shown in fig- ure 1. the S2071 performs the function of a port bypass circuit (pbc) for nodes in a fc-al system. the low jitter accumulation of the port bypass path is essential in these systems. jitter performance the primary ac parameter of importance is determinsitic jitter accumulation (data eye degrada- tion) inserted by the port bypass circuit. the S2071 utilizes high bandwidth, low skew differential circuitry to provide symmetric rise and fall times and excel- lent noise immunity. for arrays of disk drives greater than 4, it is recom- mended that the S2071 be cascaded with the s2058 (port bypass with repeater) in a ratio of 1:1 to per- form clock and data retiming. this ensures optimal jitter performance for the disk array system. 0 1 0 1 0 1 0 1 ddo0 ddi0 en0 ddo1 ddi1 en1 ddo2 ddi2 en2 ddo3 ddi3 en3 in out
2 four port bypass for fc-al S2071 january 6, 2000 / revision c figure 2. fc-al jbod application for repeaters 01 01 01 01 disk storage fc-al disk drive lrc interlock s2070 fc xcvr e_store disk storage fc-al disk drive lrc interlock e_store disk storage fc-al disk drive lrc interlock e_store optics or copper s2058 dual sc or db-9 normal normal normal bypass pulldown for bypass in absence of disk drive S2071 s2058 s2070 fc xcvr s2070 fc xcvr
3 four port bypass for fc-al S2071 january 6, 2000 / revision c table 1. pin assignment and descriptions e m a n n i pl e v e lo / i# n i pn o i t p i r c s e d p t u o n t u o . f f i d l c e p v l o 4 2 5 2 e e s ( . p o o l e h t n i c b p t x e n e h t o t d e t c e n n o c e b o t t u p t u o l a i r e s ) . 2 e r u g i f n n i p n i . f f i d l c e p v l i 9 0 1 . t i u c r i c s s a p y b t r o p s u o i v e r p e h t m o r f t u p n i l a i r e s p 0 i d d n 0 i d d p 1 i d d n 1 i d d p 2 i d d n 2 i d d p 3 i d d n 3 i d d . f f i d l c e p v l i 4 3 1 4 0 4 5 3 4 3 8 2 7 2 y b n e v i r d e b d l u o h s s t u p n i e s e h t . s s a p y b t r o p e h t o t t u p n i l a i r e s . s s a p y b t r o p e h t o t d e t c e n n o c e v i r d k s i d l a - c f e h t p 0 o d d n 0 o d d p 1 o d d n 1 o d d p 2 o d d n 2 o d d p 3 o d d n 3 o d d l c e p v l o 7 6 4 4 3 4 8 3 7 3 1 3 0 3 t u p n i e h t e v i r d d l u o h s s t u p t u o e s e h t . s r i a p t u p t u o s s a p y b t r o p . e v i r d k s i d l a - c f e h t f o s t r o p 0 n e 1 n e 2 n e 3 n e l t t i 5 1 6 1 7 1 8 1 t r o p e h t , e v i t c a n i s i n e n e h w . h g i h e v i t c a . l o r t n o c s s a p y b t r o p s s a p y b t r o p , e v i t c a s i n e n e h w . e d o m s s a p y b n i e b l l i w s s a p y b . e d o m l a m r o n n i e b l l i w d n g d n u o r g, 1 1 , 8 , 1 , 9 1 , 3 1 , 2 1 , 3 2 , 2 2 , 9 3 , 3 3 e r a d n a , e c a f r u s e i d e h t o t d e t n u o m y l l a c i s y h p e r a s n i p d n u o r g l a m r e h t t s e b r o f . h t a p l a m r e h t e h t f o t r a p t n a t r o p m i n a d n u o r g a o t d e t c e n n o c e b d l u o h s s n i p d n u o r g l l a , e c n a m r o f r e p . e l b i s s o p f i s a i v e l p i t l u m g n i s u , e n a l p c c v , 4 1 , 5 , 2 , 1 2 , 0 2 , 9 2 , 6 2 2 4 , 6 3 , 2 3 . y l p p u s r e w o p v 3 . 3 +
4 four port bypass for fc-al S2071 january 6, 2000 / revision c figure 3. S2071 pinout package 1 2 3 4 5 6 7 8 9 10 11 14 15 16 17 18 19 20 21 22 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 S2071 44 pin pqfp top view gnd vcc dd03p dd03n vcc ddi3p ddi3n vcc outn outp gnd 12 13 vcc en0 en1 en2 en3 gnd vcc vcc gnd gnd gnd 44 43 vcc ddi1p ddi1n gnd ddo2p ddo2n vcc ddi2p ddi2n ddo1p ddo1n gnd vcc ddi0n ddi0p vcc ddo0n ddo0p gnd inn inp gnd
5 four port bypass for fc-al S2071 january 6, 2000 / revision c figure 4. S2071 44 pin pqfp package e c i v e dr e w o p e g a k c a p x a m 1 q a j 1 7 0 2 sw 9 9 . 0w / c ? 5 5 thermal management 1. power is measured with outputs terminated.
6 four port bypass for fc-al S2071 january 6, 2000 / revision c r e t e m a r a pn o i t p i r c s e dn i mp y tx a ms t i n us n o i t i d n o c t o d d r t o d d f e m i t l l a f d n a e s i r a t a d l a i r e s . t u o , o d d 5 8 10 5 3s p a n o d e t s e t % 0 8 o t % 0 2 . s i s a b e l p m a s t d d . t u p t u o y n a o t t u p n i y n a4s n. 5 e r u g i f e e s . y a l e d . p o r p d v t u o l a i t n e r e f f i d t u p t u o l c e p v l . g n i w s e g a t l o v k a e p - o t - k a e p 0 0 0 10 0 2 2 p - p v m 0 5 h t i w d e t s e t w v o t c c . v 0 . 2 - . 6 e r u g i f e e s d v n i - o t - k a e p l a i t n e r e f f i d r e v i e c e r . y t i v i t i s n e s t u p n i k a e p 0 0 20 0 6 2 p - p v m v c c . d e l p u o c c a , v 3 . 3 = o t d e s a i b c d y l l a n r e t n i v c c . 6 e r u g i f e e s . v 5 . 0 - t r e t t i j s m r , n o i t a l u m u c c a r e t t i j m o d n a r . t u p t u o y n a o t t u p n i y n a 35 s p d e t a l u m u c c a r e t t i j t u p t u o s m r a n o d e t s e t . e d o c 7 . 8 2 k h t i w . s i s a b e l p m a s t r e t t i j j d r e t t i j c i t s i n i m r e t e d o t t u p n i y n a , n o i t a l u m u c c a . t u p t u o y n a 0 1 0 4 s p r e t t i j t u p t u o c i t s i n i m r e t e d . n r e t t a p 5 . 8 2 k d e t a l u m u c c a . s i s a b e l p m a s a n o d e t s e t table 2. ac charateristics (over recommended operating conditions)
7 four port bypass for fc-al S2071 january 6, 2000 / revision c s r e t e m a r a pn o i t p i r c s e dn i mp y tx a ms t i n us n o i t i d n o c v h i ) l t t ( e g a t l o v h g i h t u p n i0 . 2v v l i ) l t t ( e g a t l o v w o l t u p n i8 . 0v i h i ) l t t ( t n e r r u c h g i h t u p n i0 5a v n i v 4 . 2 = i l i ) l t t ( t n e r r u c w o l t u p n i0 0 5 -0a v n i v 5 . 0 = table 3. lvttl dc characteristics table 4. lvpecl input/output dc characteristics s r e t e m a r a pn o i t p i r c s e dn i mp y tx a ms t i n us n o i t i d n o c v h o e g a t l o v h g i h t u p t u o c c v 5 1 . 1 - v v l o e g a t l o v w o l t u p t u o c c v 5 6 . 1 - v v h i e g a t l o v h g i h t u p n i c c v 2 . 1 - c c v 5 . 0 - v v l i e g a t l o v w o l t u p n i c c v 0 . 2 - c c v 4 . 1 - v i h i t n e r r u c h g i h t u p n i0 5 2 -0 0 2a i l i t n e r r u c w o l t u p n i0 5 2 -0 0 2a
8 four port bypass for fc-al S2071 january 6, 2000 / revision c r e t e m a r a pn i mp y tx a ms t i n u v ( e g a t l o v y l p p u s r e w o p l t t c c ) 5 . 04 +v v ( e g a t l o v t u p n i c d l c e p p n i ) 5 . 0 - v c c 5 . 0 + v v ( e g a t l o v t u p n i c d l t t p n i ) 5 . 0 -5 . 5v t u p t u o h g i h r o f s t u p t u o o t d e i l p p a e g a t l o v c d v ( e t a t s l t t n i ) 5 . 0 - v c c 5 . 0 + v i ( t n e r r u c t u p t u o l c e p t u o ) h g i h t u p t u o , c d ( ) 4 2a m t ( e r u t a r e p m e t e g a r o t s g t s ) 5 6 -0 5 1c ? r e t e m a r a pn i mp y tx a ms t i n u v ( e g a t l o v y l p p u s r e w o p c c ) 3 1 . 3 +7 4 . 3 +v s a i b r e d n u e r u t a r e p m e t n o i t c n u j0 3 1c ? ) t ( e g n a r e r u t a r e p m e t g n i t a r e p o t n e i b m a00 7c ? y l p p u s t n e r r u c c c i 2 0 2 20 6 2a m n i p t u p n i n a n o e g a t l o v v c c 2 Cv c c v table 5. absolute maximum ratings 1 table 6. recommended operating conditions 1 1. caution: stresses listed under "absolute maximum ratings" may be applied to devices one at a time without causing permanent damage. functionality at or above the values listed is not implied. exposure to these values for extended periods may affect device reliability. 1. amcc guarantees the functional and parametric operation of the part under "recommended oper- ating conditions," except where specifically noted in the ac and dc parametric tables. 2. icc is measured with outputs not terminated. eletrostatic discharge (esd) ratings the S2071 is rated to the following esd voltages based on the human body model: 1. all pins are rated at or above 1000 v.
9 four port bypass for fc-al S2071 january 6, 2000 / revision c in p/n ddi p/n out p/n ddo p/n t dd figure 5. timing waveforms figure 6. differential input/output voltage power sequencing when the S2071 is operated with a 5 volt controller, it is recommended that power be applied to the S2071 before or simultaneously (time difference less than 1 ms) with the application of power to the 5 volt controller. if this condition cannot be met, series re- sistance of at least 33 ohms is required on all ttl inputs driven from the 5 volt environment. static control lines such as en[3:0] should also be provided with series resistors of at least 33 ohms (100 ohms recommended) to limit input current if the 5 volt environment is powered while the 3.3 volt vcc of the S2071 is off. v in/out (+) v in/out (? v in/out (+) ?v in/out (? v swing d v in/out = 2 x v swing note: v in/out (+) C v in/out (C) is the algebraic difference of the input/output signals.
10 four port bypass for fc-al S2071 january 6, 2000 / revision c figure 7. output circuit figure 8. high speed differential inputs backplane 150 150 S2071 0.1 f 0.1 f zo=50 zo=50 inp inn 0.1 f 0.1 f v cc ?.5v S2071 100 zo=50 zo=50
11 four port bypass for fc-al S2071 january 6, 2000 / revision c amcc is a registered trademark of applied micro circuits corporation. copyright ? 2000 applied micro circuits corporation amcc reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the informati on being relied on is current. amcc does not assume any liability arising out of the application or use of any product or circuit described herein, neither do es it convey any license under its patent rights nor the rights of others. amcc reserves the right to ship devices of higher grade in place of those of lower grade. amcc semiconductor products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. applied micro circuits corporation ? 6290 sequence dr., san diego, ca 92121 phone: (619) 450-9333 ? (800) 755-2622 ? fax: (619) 450-9885 http://www.amcc.com c e r t i f i e d i s o 9 0 0 1 x i f e r pe c i v e de g a k c a p t i u c r i c d e t a r g e t n i - s1 7 0 2p f q p n i p 4 4 C f q ordering information x xxxx xx prefix device package

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